Finding the Fourth Proportional to 342,151.56, 472,166.30 and 189,196.42

Step by Step Solution

1. Step 1: Write the proportion equation
   342,151.56 : 472,166.30 = 189,196.42 : x
2. Step 2: Convert to fraction form
   342,151.56/472,166.30 = 189,196.42/x
3. Step 3: Cross multiply
   342,151.56x = 472,166.30 × 189,196.42
4. Step 4: Simplify right side
   342,151.56x = 89,332,173,604.65
5. Step 5: Solve for x
   x = 89,332,173,604.65/342,151.56
6. Step 6: Final answer
   x = 261,089.48